Soft Soldering, Hard, Soldering and Brazing: A Practical Treatise on Tools, Material and Operations; For the Use of Metal Workers, Plumbers, Tinners, Mechanics, and Manufacturers. E-book. Formato PDF James F. Hobart   -  Forgotten Books, 2017  - 

At the same time so many mechanics are accustomed to perform soldering operations with poorly prepared tools and with appliances which might be greatly improved upon, that the author is led to offer this book in the hope that it will serve as a practical aid to improved methods, thereby serving the interests of mechanics who seek advancement as well as employers who are alert to the importance of efficiency and economy in the methods pursued in their establishments. Therefore the author has dwelt with considerable fullness upon the many phases of soldering and brazing, giving the results of experience and observation acquired through long practice and experiment in these channels.

Brazing and Soldering. E-book. Formato PDF James F. Hobart   -  Forgotten Books, 2017  - 

Soldering and brazing are terms often used to denote the same operation, that of joining similar or dissimilar metals by means of molten metal which may be of the same kind, but which usually has a lower melting point than the metals to be joined. The term "brazing" is usually employed to denote the soldering with an alloy of copper or zinc. "Soldering" is usually taken to represent the joining of surfaces by means of an alloy of lead and tin, and "hard-soldering" is understood to mean the process of uniting as above described with silver and its alloys used as a uniting metal. Hard soldering and brazing are practically the same, and are both done in about the same way.The theory of brazing is the melting of a low fusing metal against the metals to be united while they are in such a condition of cleanliness and temperature that the metal welds itself to them. Soft brass, when melted, will weld itself to iron, copper, and a number of other metals, while the temperature of the metals in question is at a considerable number of degrees below their several melting points. In fact, only heat enough need be employed to fairly melt the uniting metal and to render it fluid enough to flow, or to "run," as the mechanic aptly states it.To braze, also to solder, it is absolutely necessary that the surfaces to be united are clean and free from oxide.